More than 1,500 times. That is how much Anthropic's valuation has multiplied since 2021, climbing from $623 million to $965 billion in just five years. Now the maker of Claude has filed to go public, and Wall Street is quietly trying to price what could become a $2 trillion listing. Here is the data behind one of the largest technology IPOs ever attempted.

Key Takeaways

• Anthropic confidentially submitted a draft S-1 registration statement to the SEC on June 1, 2026, giving the company the option to proceed with an IPO after regulatory review.
• Anthropic's annualized revenue run rate reportedly exceeded $65 billion by the end of July 2026, up from approximately $47 billion in May and about $9 billion at the end of 2025.
• In May 2026, Anthropic raised $65 billion in a Series H funding round at a $965 billion post-money valuation.
• Recent reports suggest Anthropic's 2028 revenue projections could reach approximately $190 billion to $200 billion, although those projections remain subject to significant execution and market risks.

Anthropic IPO at a glance

Figures compiled from Anthropic disclosures, Bloomberg, Reuters, CNBC and Forge Data, as of August 26, 2026. Run-rate and valuation figures are point-in-time and may change.

Anthropic IPO date and S-1 filing timeline

A confidential filing starts the clock quietly. Under the JOBS Act, a company can trade drafts with the SEC out of public view and only reveal its financials shortly before it markets the deal.

Anthropic submitted its draft registration statement on June 1, 2026, after hiring law firm Wilson Sonsini and holding early conversations with banks in late 2025. A confidential path lets the company revise its prospectus through several rounds of SEC comments before anything becomes public. The rule that matters for timing is the roadshow trigger. Anthropic would need to publicly file an amended S-1 at least 15 days before it markets the offering to institutional investors, which is the moment its full financials become visible.

Where Anthropic Stands on Its IPO Journey

The exact timeline depends on regulatory feedback, competitive dynamics and Anthropic's own decision on when to price. There is no assurance the company will complete an offering.

Anthropic valuation history, from $623 million to $965 billion

Anthropic's Series A in May 2021 valued the company near $623 million. Its Series H in May 2026 landed at $965 billion. That is one of the steepest private-market re-ratings on record.

Anthropic funding rounds and investors

The nine primary rounds trace how ownership moved from a handful of individuals and safety-focused backers toward the largest technology and asset-management names in the world.

Anthropic Revenue and Run Rate Growth Explained

Private valuations follow revenue when growth is this fast. Anthropic's run rate, the annualized figure it projects from recent performance, is what turned a $183 billion company into a near-trillion-dollar one inside a year.

Anthropic Q2 2026 Revenue and Earnings

Preliminary second quarter 2026 figures show the scale of the acceleration and, for the first time, a profit signal at the operating line.

Preliminary figures per Bloomberg documents. The company reported positive adjusted operating income, reversing a roughly $5.6B loss posted in 2024.

What is driving Anthropic's revenue growth

Anthropic has leaned into enterprise and developer demand rather than the mass-market consumer race, and it has kept spending tighter than some peers. Claude and Claude Code adoption across businesses lifted usage-based revenue, while the company reports it has also tightened how it defines run-rate revenue ahead of a listing.

That mix matters for an IPO. Enterprise revenue tends to be higher margin and more durable than consumer subscriptions, which is part of why the quarter turned an operating profit even as infrastructure spending stayed heavy.

Anthropic IPO Valuation, How Wall Street Prices a $2 Trillion Deal

A valuation near $2 trillion is hard to justify on today's revenue alone. Bankers are instead applying revenue multiples to a forecast two years out, an unusually long reach that says as much about the moment as about the company.

At up to $2 trillion, the deal implies roughly 10x projected 2028 revenue and about 31x the current run rate.

The math only works if Anthropic delivers the $190 billion to $200 billion of 2028 revenue it is projecting, which would mean roughly quadrupling again from the July 2026 run rate.

Anthropic IPO comparables and revenue multiples

Public comparables anchor an IPO price. The names below were reportedly considered as reference points because each captures part of Anthropic's profile, from rapid software growth to businesses valued mostly on their future scale.

Peer multiples per LSEG data cited by Reuters. Anthropic multiples are implied by GraniteShares Research from reported valuation and revenue figures and are illustrative, not a forecast.

Who owns Anthropic, and who benefits

Two strategic backers dominate the cap table. A successful IPO would mark up their stakes and give public investors an indirect way in well before shares trade.

Stakes are approximate and subject to dilution from later rounds. Source: The New York Times, company disclosures and market reports.

How to invest in Anthropic through Amazon and Google

Because Anthropic is still private, some investors gain indirect participation through its public backers. Amazon's roughly 21% stake and Alphabet's roughly 15% stake mean a blockbuster listing could revalue holdings that already sit on two of the largest balance sheets in technology.

That is not the same as owning Anthropic. The stakes are small relative to each parent's total value, so any read-through to Amazon or Alphabet shares may be modest and indirect.

Anthropic vs OpenAI, comparing the AI IPO race

Both leaders filed confidentially within days of each other. Anthropic filed first and could reach the market first, though the two describe their businesses in different ways.

The two companies may not measure revenue the same way, so run-rate comparisons should be read with care. Sources: Bloomberg, Reuters, CNBC, Axios, Forge Data.

On the most recently disclosed figures, Anthropic's run rate leads OpenAI's, and its last private valuation is higher. The order of listing would mostly reflect timing of access to public capital rather than any settled verdict on which business is stronger.

Anthropic IPO risks and open questions

A valuation built on a 2028 forecast carries real fragility. These are the variables that could move the price the most.

The forecast has to hold

Pricing the deal on 2028 revenue means the whole calculation borrows from the future. If growth slows, if AI infrastructure costs stay elevated, or if cheaper rivals compress pricing, a two-years-forward multiple can unwind quickly. The core question is whether a company can quadruple revenue twice in little more than two years and keep doing it.

Capacity is contracted, but not guaranteed

Anthropic frames its forecast as a construction schedule tied to dated, contracted compute, including large Amazon and Google infrastructure commitments. That makes progress checkable, but it also means construction delays or weaker-than-expected demand could show up directly in results.

Policy and competition

The company has navigated notable disruptions, including a period when it temporarily withdrew two of its most capable models to comply with a government export-control directive before restoring access. Regulatory shifts, competition from well-capitalized rivals such as Google, and the pace of model commoditization all remain live risks.

How to invest in Anthropic and what the IPO means

A listing would create one of the first pure public equities tied directly to a frontier AI lab, and history suggests high-profile debuts tend to draw a wide set of investment tools around them.

Until an offering prices, most investors can participate only indirectly, through the public backers that hold large stakes or through private secondary marketplaces open to accredited investors. Any transfer of private Anthropic shares generally requires company approval.

Once a widely traded AI name is public, single-stock and thematic strategies often follow, letting investors express more precise, and sometimes leveraged or inverse, views on a single company. GraniteShares specializes in single-stock and thematic strategies of this kind, and a public Anthropic may in time broaden the toolkit available to investors who want to position around it. As always, that positioning seeks a defined outcome rather than a guaranteed one.

Anthropic IPO, frequently asked questions

When is the Anthropic IPO?

Anthropic confidentially filed a draft S-1 with the SEC on June 1, 2026. Reports indicate it could begin trading as early as fall 2026, though no date is confirmed and the timing depends on SEC review and market conditions.

What is the Anthropic IPO valuation?

Its last private valuation was $965 billion in the May 2026 Series H. Bankers and investors have discussed a potential listing valuation of up to roughly $2 trillion, a figure that rests on projected 2028 revenue of $190 billion to $200 billion.

How much revenue does Anthropic generate?

Its annualized revenue run rate reached about $65 billion by the end of July 2026, up more than sevenfold from roughly $9 billion at the end of 2025. Second quarter 2026 revenue exceeded $11.5 billion, versus $787 million a year earlier.

Who owns Anthropic?

Amazon is the largest outside investor with a stake of about 21% after roughly $33 billion committed. Alphabet holds about 15%. Founders, employees and a broad group of institutional investors hold the remainder.

Can you buy Anthropic stock before the IPO?

Anthropic is privately held. Pre-IPO shares are generally available only to accredited investors through private secondary marketplaces, and any transfer requires company approval. Most investors would be able to buy shares only after a public listing.

Sources

1. 1.Anthropic, confidential draft S-1 filing (reported by Reuters, June 1, 2026); and funding announcements for Series F, Series G and Series H.
2. 2.Bloomberg, "Anthropic's Annualized Revenue Tops $65 Billion Before IPO," August 17, 2026.
3. 3.Reuters, on Anthropic's $190-200 billion 2028 revenue forecast and a potential IPO valuation of up to ~$2 trillion, August 2026 (via Yahoo Finance).
4. 4.CNBC, on Anthropic's confidential SEC filing and IPO preparations, 2026.
5. 5.Axios, on Anthropic's run rate, lead banks (Morgan Stanley, Goldman Sachs, JPMorgan) and OpenAI's ~$40 billion run rate, August 17, 2026.
6. 6.Yahoo Finance / Quartz, on Q2 revenue above $11.5 billion and positive adjusted operating income, citing Bloomberg, August 2026.
7. 7.Forge Global, Anthropic IPO and upcoming IPO company and funding-history data (Series A to E reconstruction), 2026.
8. 8.The Motley Fool, on Alphabet's ~15% stake in Anthropic, August 2026.
9. 9.The Motley Fool, on Amazon's ~21% stake and roughly $33 billion invested in Anthropic, August 2026.